AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[MTD] OneNAND: Do not allow oob write past end of page

Browse Source 
OneNAND can write oob to successive pages, but NAND
does not do that.  For compatibility, disallow OneNAND
from writing past the end of the page.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Adrian Hunter 2007-02-06 09:15:39 +09:00 committed by Kyungmin Park
parent 5b4246f1b0
commit 52e4200a6d
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/mtd/onenand/onenand_base.c
View File

@ -1186,6 +1186,13 @@ static int onenand_do_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
return -EINVAL;
}
/* For compatibility with NAND: Do not allow write past end of page */
if (column + len > oobsize) {
DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_oob: "
"Attempt to write past end of page\n");
return -EINVAL;
}
/* Do not allow reads past end of device */
if (unlikely(to >= mtd->size ||
column + len > ((mtd->size >> this->page_shift) -